GERMAN JOINS COMMERCE BANK AS SENIOR VICE PRESIDENT, COMMERCIAL BANKING DIVISION

(Kansas City, MO – October 21, 2010) – John Himmel, chairman, Commerce Bank, Springfield Region, recently announced that Richard German has joined Commerce as senior vice president and commercial banking officer. In his new position, he is responsible for business development and relationship management related to Commerce’s full line of banking, borrowing and treasury management solutions for commercial clients. We are extremely pleased to have Rick join our commercial banking team,” said Himmel. “His knowledge and expertise are valued not only by the bank, but will be a great asset to our customers.”

German is a graduate of Missouri State University and has more than 23 years in the banking and finance industries. He volunteers for several not-for-profit organizations, including serving as a board member for The Discovery Center.

German’s office will be located at Commerce Bank’s Battlefield Banking Center, 1345 E. Battlefield, Springfield.

About Commerce Bank

Commerce Bancshares Inc. (NASDAQ: CBSH) is an $18.8 billion regional bank holding company. For more than 140 years, Commerce has been meeting the financial services needs of individuals and businesses. Commerce Bank provides a diversified line of financial services, including business and personal banking, wealth management, financial planning, and investments through its affiliated companies. Commerce operates in 370 locations in the Central United States. Commerce Bancshares also has operating subsidiaries involved in mortgage banking, credit related insurance, venture capital and real estate activities.

For additional information contact:

Email: mymoney@commercebank.com†